diff --git a/pkgs/applications/version-management/mercurial/default.nix b/pkgs/applications/version-management/mercurial/default.nix
index 88ce129b449..e0400fd46c6 100644
--- a/pkgs/applications/version-management/mercurial/default.nix
+++ b/pkgs/applications/version-management/mercurial/default.nix
@@ -8,11 +8,11 @@ let
 
 in python3Packages.buildPythonApplication rec {
   pname = "mercurial";
-  version = "5.4.2";
+  version = "5.6";
 
   src = fetchurl {
     url = "https://mercurial-scm.org/release/mercurial-${version}.tar.gz";
-    sha256 = "0ls8nwx3nz26pibphw54fg8pxqb365zmmqx95lqrxqqyf3d972sw";
+    sha256 = "1hk2y30zzdnlv8f71kabvh0xi9c7qhp28ksh20vpd0r712sv79yz";
   };
 
   format = "other";